10.1177/0022002704269353ARTICLEJOURNAL OF CONFLICT RESOLUTIONChapman, Reiter / RA LY ’ OUND HE FLAG EFFECT The United Nations Security Council and the Rally ’Round the Flag Effect

A principal agent model is used to test the hypothesis that when proposed uses of force attract the support of the United Nations (UN) Security Council, the rally in support of the American president increases signif-icantly. Regression analysis is applied to rallies during all militarized interstate disputes from 1945 to 2001. Results show that UN Security Council support significantly increases the rally behind the president (by as many as 9 points in presidential approval), even after including an array of control variables. This finding is generally robust across most model specifications. This effect is unique among international institutions because other actions by the UN or regional security organizations do not significantly affect rallies. These findings provide new insight into how international institutions can matter and influence the foreign policies of states by affecting public opinion